However, you should expect to see improvement during the first 12 months of your treatment. If you have taken finasteride for 12 months and have not noticed any improvement, further treatment probably will not help. Talk to your doctor about whether you should continue your treatment. Finasteride will only slow hair loss while you are taking the medication. Continue to take finasteride even if you have already noticed an improvement.
You will probably lose any hair that grew back while you were taking finasteride during the first 12 months after you stop taking the medication.. This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
Skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one. Finasteride may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
Taking finasteride may increase the risk that you will develop high-grade prostate cancer a type of prostate cancer that spreads and grows more quickly than other types of prostate cancer. Talk to your doctor about the risks of taking finasteride. Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture not in the bathroom. It is important to keep all medication out of sight and reach of children as many containers such as weekly pill minders and those for eye drops, creams, patches, and inhalers are not child-resistant and young children can open them easily.
To protect young children from poisoning, always lock safety caps and immediately place the medication in a safe location — one that is up and away and out of their sight and reach. Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. In case of overdose, call the poison control helpline at If the victim has collapsed, had a seizure, has trouble breathing, or can't be awakened, immediately call emergency services at Keep all appointments with your doctor and the laboratory.
This is not a common side effect and your sperm usually returns to normal after stopping finasteride. Speak to your doctor if you have recently stopped finasteride and you and your partner are trying for a baby. This is because it takes a while for the effects of the medicine to wear off. Finasteride can give you side effects such as not being able to get an erection impotence and having less interest in sex.
These side effects usually pass after a while. If these side effects do not go away, are worrying you or affecting your sex life, speak to your doctor. Page last reviewed: 10 August Next review due: 10 August Finasteride - Brand names: Proscar, Propecia On this page About finasteride Key facts Who can and cannot use finasteride How and when to take finasteride Side effects How to cope with side effects Advice for women Cautions with other medicines Common questions about finasteride.
About finasteride Finasteride is used to treat men with an enlarged prostate benign prostate enlargement. It can help ease your symptoms if: it's difficult to start peeing you need to pee urgently or frequently more often it's difficult to empty your bladder completely Finasteride comes as tablets. It's available on prescription only.
You'll usually take finasteride tablets once a day. The main side effects are losing interest in sex and difficulty getting an erection. Finasteride can affect the results of PSA testing a blood test to check for prostate cancer This medicine gets into semen and can harm an unborn baby.
Use a condom when having sex if your partner is pregnant or could get pregnant. If you're pregnant or trying to get pregnant, do not touch crushed or broken finasteride tablets.
If the tablets are broken, the medicine can pass through your skin and can harm your baby. Finasteride can be taken by men aged 18 years or over. It's generally not recommended for women or children. To make sure this medicine is safe for you, tell a doctor if you: have had an allergic reaction to finasteride or any other medicines in the past have severe bladder problems have liver problems are trying for a baby or have a pregnant partner — this medicine passes into semen and can affect an unborn baby.
Swallow your finasteride tablets whole with a drink of water. Do not break or crush them. Important Pregnant women must not touch crushed or broken finasteride tablets. Dosage For enlarged prostate the usual dose is 5mg, taken once a day. For hair loss, the usual dose is 1mg, taken once a day. What if I forget to take it? Do not take a double dose to make up for a forgotten dose. What if I take too much? Finasteride is generally very safe.
Taking too much is unlikely to harm you. Urgent advice: Contact for advice now if:. Common side effects These common side effects happen in more than 1 in people. However, talk to your doctor or pharmacist if these side effects bother you or do not go away: problems getting an erection and less interest in having sex problems with ejaculating, such as little or no semen Serious side effects Serious side effects are rare and happen in less than 1 in 1, people.
Speak to your doctor if you get: any lumps, pain or swelling in your chest area or discharge from your nipples — these may be signs of a serious condition such as breast cancer unusually low mood depression or thoughts of harming yourself Serious allergic reaction In rare cases, finasteride may cause a serious allergic reaction anaphylaxis. What to do about: problems getting an erection and less interest in sex — these side effects should improve with time.
If they do not get better, speak to your doctor. Talk to a doctor if it does not get any better. Finasteride is not affected by other medicines.
Mixing finasteride with herbal remedies and supplements St John's wort a supplement sometimes taken to help with depression might stop finasteride working as well as it's supposed to. For children: The safety and effectiveness of finasteride in children have not been established. This drug is not prescribed for use in children. All possible dosages and forms may not be included here.
Your dose, form, and how often you take it will depend on:. Dosage for people younger than 18 years has not been established. However, because drugs affect each person differently, we can not guarantee that this list includes all possible dosages. Always speak with your doctor or pharmacist about dosages that are right for you. Finasteride is used for long-term treatment. It comes with serious risks if you do not take it as prescribed.
If you do not take it at all. You may not see improvement in your condition. If you take too much. These can include decreased sex drive, trouble getting or keeping an erection, ejaculation disorder, increase in breast size or tenderness, and rash. What to do if you miss a dose.
If you forget to take your dose, do not take an extra tablet. Just take the next tablet as usual. How to tell if the drug is working. A prescription for this medication is refillable. You should not need a new prescription for this medication to be refilled.
Your doctor will write the number of refills authorized on your prescription. Approval is determined on a plan-by-plan basis. There are other drugs available to treat your condition. Some may be better suited for you than others. Talk to your doctor about other drug options that may work for you.
Disclaimer: Healthline has made every effort to make certain that all information is factually correct, comprehensive, and up to date. However, this article should not be used as a substitute for the knowledge and expertise of a licensed healthcare professional.
You should always consult your doctor or another healthcare professional before taking any medication. The drug information contained here in is subject to change and is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. The absence of warnings or other information for a given drug does not indicate that the drug or drug combination is safe, effective, or appropriate for all patients or all specific uses.
Young men using the hair loss drug finasteride Propecia , may be at higher risk of depression, anxiety, and suicidal thoughts, a new study suggests.
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